Why So Many Links?

I am compiling the lists of links as a research tool and a reminder of places, associations I would like to visit. Some places I have been to many times, some I have yet to visit. I plan to write more detailed descriptions for each organization in hopes that it will clarify where best to find the information I need and help others pinpoint the info they need. I am particularly interested in what each offers from their libraries and in way of lectures. I am not affiliated with any of the organizations.